[ASK] Error org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter

[Fandy Akhmad]

Hello, Coderanch.
I have problem using struts2. I use struts version 2.3.1.2
I create some project using Eclipse. And i get this following error.

SEVERE: Exception starting filter struts2
java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1533)
	at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:525)
	at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:507)
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:124)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:256)
	at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:103)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4624)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5281)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1525)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1515)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

But the program, running normally. I can execute it. And on console i get error above.

Please help me
Thanks